.big {
  position: relative;
  margin-left: 100px;
}
.big div:nth-child(20):after {
  display: none;
}
.topBox {
  position: absolute;
  display: inline-block;
  width: 10%;
  height: 0.5rem;
  opacity: 1;
  text-align: center;
  background-color: #71ae21;
  box-sizing: border-box;
  z-index: 999;
  border-radius: 10px;
}
.topBox:after {
  content: "";
  position: absolute;
  top: 50%;
  left: 90%;
  width: 105px;
  height: 2px;
  margin-left: 16px;
  background-image: url(../img/blue.png);
  transform: rotateY(180deg);
  background-size: 100% 100%;
  z-index: 10;
}
.topBox > h2 {
  font-size: 14px;
  font-weight: bold;
  margin: 0;
  color: white;
  line-height: 0.5rem;
}
.topBox span {
  font-size: 10px;
  font-family: Microsoft YaHei;
  font-weight: 400;
}
.topBox > h3 {
  position: relative;
  margin-top: 0.15rem;
  border-radius: 10px;
  margin-bottom: 0;
}
.topBox > h3 i {
  position: absolute;
  bottom: 100%;
  left: 50%;
  width: 1px;
  height: 30px;
  background-image: url(../img/blue.png);
}
.topBox > h3 p {
  color: #fff;
  font-size: 12px;
  padding: 5px;
}
.topBox:nth-child(5):after,
.bottomBox:nth-child(15):after {
  width: 100px;
  height: 620px;
  background-image: url(../img/big.png);
}
.midBox {
  position: absolute;
  top: 615px;
  display: inline-block;
  width: 10%;
  height: 0.5rem;
  text-align: center;
  box-sizing: border-box;
  background-color: #71ae21;
  border-radius: 10px;
}
.midBox:after {
  content: "";
  position: absolute;
  top: 50%;
  right: 90%;
  width: 105px;
  height: 2px;
  margin-right: 16px;
  background-image: url(../img/blue.png);
  background-size: 100% 100%;
}
.midBox h2 {
  font-size: 14px;
  font-family: Microsoft YaHei;
  font-weight: bold;
  margin: 0;
  color: #fff;
  line-height: 100px;
}
.midBox span {
  font-size: 10px;
  font-family: Microsoft YaHei;
  font-weight: 400;
}
.midBox > h3 {
  position: relative;
  margin-top: 30px;
  border-radius: 10px;
  margin-bottom: 0;
}
.midBox > h3 i {
  position: absolute;
  bottom: 100%;
  left: 50%;
  width: 1px;
  height: 30px;
  background-image: url(../img/blue.png);
}
.midBox > h3 p {
  color: #fff;
  font-size: 12px;
  padding: 5px;
}
.midBox:nth-child(6),
.lastBox:nth-child(16),
.topBox:nth-child(5),
.topBox:nth-child(15) {
  right: 1.4rem;
  z-index: 999;
}
.midBox:nth-child(7),
.lastBox:nth-child(17),
.topBox:nth-child(4),
.topBox:nth-child(14) {
  right: 2.5rem;
}
.midBox:nth-child(8),
.lastBox:nth-child(18),
.topBox:nth-child(3),
.topBox:nth-child(13) {
  right: 3.7rem;
}
.midBox:nth-child(9),
.lastBox:nth-child(19),
.topBox:nth-child(2),
.topBox:nth-child(12) {
  right: 4.8rem;
}
.midBox:nth-child(10),
.lastBox:nth-child(20),
.topBox:nth-child(1),
.topBox:nth-child(11) {
  right: 5.9rem;
}
.midBox:nth-child(10):after,
.lastBox:nth-child(20):after {
  width: 100px;
  height: 620px;
  background-image: url(../img/big.png);
}
.bottomBox {
  top: 1220px;
}
.lastBox {
  top: 1840px;
}
.lastBox:nth-child(20) ::after {
  display: none;
}
.gray {
  background-color: #dcdcdc;
}
.gray:after {
  background-image: url(../img/gray.png);
}
.orange {
  background-color: #fece61;
}
.orange:after {
  background-image: url(../img/orange.png);
}
.showColor {
  position: fixed;
  left: 10px;
  top: 90px;
  width: 300px;
  height: 500px;
}
.notShow {
  display: none;
}
.bgcgreen {
  background-color: #71ae21;
}
.bgcorange {
  background-color: #fece61;
}
.bgcgray {
  background-color: #dcdcdc;
}
